1000001009863 has 2 divisors, whose sum is σ = 1000001009864. Its totient is φ = 1000001009862.

The previous prime is 1000001009851. The next prime is 1000001009893. The reversal of 1000001009863 is 3689001000001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000001009863 - 2¹⁷ = 1000000878791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000001009893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000504931 + 500000504932.

It is an arithmetic number, because the mean of its divisors is an integer number (500000504932).

Almost surely, 2^{1000001009863} is an apocalyptic number.

1000001009863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001009863 is an equidigital number, since it uses as much as digits as its factorization.

1000001009863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 1000001009863 its reverse (3689001000001), we get a palindrome (4689002009864).

The spelling of 1000001009863 in words is "one trillion, one million, nine thousand, eight hundred sixty-three".